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Species · Virginia · BBS 2026 Release · 1966–2025

Yellow-billed Cuckoo Population Trend in Virginia

All statesForest birds

Yellow-billed Cuckoo in Virginia has declined: down 28% on the route-weighted index since 1968.

-28%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
85Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Yellow-billed Cuckoo Trends in VirginiaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Yellow-billed Cuckoo in Virginia. See the full index history below.

Yellow-billed Cuckoo Population Forecast in Virginia

If the recent trend holds, Yellow-billed Cuckoo in Virginia is projected to rise about 30% by 2030 — from 2.3 in 2025 to a central estimate of 2.9 (95% range 0.00–6.1). A 5-year backtest shows a typical error of ±31%, with 100% of held-out values landing inside the 95% band.

+30%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
2.9Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–6.195% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±31%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Yellow-billed Cuckoo in Virginia is projected to rise about 30% by 2030 — from 2.3 in 2025 to a central estimate of 2.9 (95% range 0.00–6.1). A 5-year backtest shows a typical error of ±31%, with 100% of held-out values landing inside the 95% band.19662030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20263.10.006.3
20273.10.006.2
20283.00.006.2
20293.00.006.2
20302.90.006.1

Yellow-billed Cuckoo Survey Routes in Virginia

Routes recording Yellow-billed Cuckoo in Virginia.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Big Meadows1920231993
Newsoms1820241967
Branchville1320241966
Newville1120241988
David1020131968
Wylliesburg1020191971
Carters Brdg 21020252015
Brandon1020251992
Finchley920211994
Hall820251967
Ringgold820251976
Waverly719871978
Moran720251996
White Stone620251966
Cape Charles620181992
W Augusta520251967
Partlow520151977
Brodnax520251973
Ft Pickett N519951993
Gloucester520251992
Truhart520241996
Tryme420251975
Concord420241967
Church Road420251966
Sharps420241967

Yellow-billed Cuckoo Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.